MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are consistent with a link farm or redirection scheme. No scripts were extracted, but the primary attack vector appears to be the malicious redirection links.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.com/wb?keyword=tesseract%20pdf%20files In PDF document text
- http://files.robbfreemethodisthistoricalcentre.com/uploads/1/3/2/6/132682663/miwizizujo.pdfIn PDF document text
- http://files.historicaldivingequipment.com/uploads/1/3/0/7/130739544/konolavu.pdfIn PDF document text
- http://files.soilihuhtakallio.com/uploads/1/3/1/3/131379899/2bd2d87.pdfIn PDF document text
- http://files.broadwingadventures.com/uploads/1/3/1/1/131163872/fedfc53d.pdfIn PDF document text
- http://bepuza.celiadoesscience.com/uploads/1/3/1/0/131071114/d8f96.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9394/0629/files/aristophanes_lysistrata_trke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4399/5298/files/48267053055.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6686/0455/files/pinowutugelavopiferivifu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0469/8535/files/bycatch_reduction_devices.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6073/1808/files/gefusamovabewox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7995/8679/files/52428479091.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0250/2054/files/everything_i_never_told_you_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0610/6528/files/therapeutic_classification_of_drugs_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7940/1632/files/79863814387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8406/3654/files/pokemon_platinum_rare_candy_codes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/1517/2259/files/beckman_oral_motor_intervention.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000607e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x607E | 5100 bytes |
SHA-256: 4ce815c2ee694d707f7fdcb0575fcafd593a1bc8e2a6c0841b4b91b8cfef4d4d |
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font_01_sfnt_off000071df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71DF | 10112 bytes |
SHA-256: 9506cd7ef82bcc3108d5c4818ce8eb8771b3d95670e75516f09aa2dcaa21e6af |
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